Method of and apparatus for extraction of gold from placer...

Details Method of and apparatus for extraction of gold from placer... Method of and apparatus for extraction of gold from placer...

B - Operations, Transporting

03

B

209/158

B03B 4/00 (2006.01) B03B 5/00 (2006.01) B03B 7/00 (2006.01) B03B 11/00 (2006.01) B03B 13/00 (2006.01) C22B 11/10 (2006.01)

Patent

CA 1110206

ABSTRACT The present invention relates to a method of extracting gold from placer gravel. Whereas conventional techniques are relatively effective in the processing of coarse gold particles, i.e. plus ten mesh tyler, the present invention finds application in recovery of gold particles of all sizes from submicroscopic through coarse nuggets larger than ten mesh tyler. A rotating sluice box uses centrifugal force to enhance the sluicing process, and a centrifugal amalgamator then extracts gold from the concentrate thus produced, under centrifugal force. Gold is removed from the mercury by conventional techniques.

316785

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